Watch chronograph



FIG. 1 is a right side view of my new watch chronograph design;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a rear elevation thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a perspective view thereof. 

The ornamental design for a watch chronograph, as shown and described. 